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Double group component sydraulic free-piston engine

A piston engine and two-component technology, applied in the direction of machines/engines, rocket engine devices, mechanical equipment, etc., can solve the problems of strict compression ratio and compression stroke, separate ignition system, etc., and achieve high system reliability and simple structure , a wide range of effects

Inactive Publication Date: 2007-12-05
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The current hydraulic free-piston engine is mainly based on internal combustion, requires a separate ignition system, and has strict requirements on compression ratio and compression stroke, which has become a bottleneck restricting its development

Method used

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  • Double group component sydraulic free-piston engine

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Embodiment Construction

[0012] As shown in the drawings, the present invention includes that the first cylinder 5 is connected with the second cylinder 5' through the hydraulic pump cavity 7, and connects the first power piston 6 at one end of the piston rod 14, the pump piston 13 in the middle and the second cylinder at the other end. The power piston 6' is installed in the first cylinder 5, the hydraulic pump chamber 7 and the second cylinder 5' respectively. The pump piston 13 is connected with a distribution check valve group 8, and one end of the distribution check valve group 8 is stored by high pressure. The device 10 is connected to one end of the load 11, and the other end of the distribution check valve group 8 is connected to the other end of the load 11 through the low pressure accumulator 12. The outlet of the oxidant tank 1 is divided into two paths, one path is connected to the air inlet 4 of the first cylinder 5 through the first oxidant control valve 16, and the other path is connecte...

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Abstract

The invention discloses a bi-element hydraulic free-piston engine which flats to the hydraulic pump by using the one-way valve. The device takes the aviation single-element propellant as the oxidizer and the high-energy mineral fuel as the incendiary agent to form the bi-element driving energy. The mineral fuel is ignited by the high-temperature and the oxygen generating from the oxidizer catalytic decomposition to release the huge energy, which propels the hydraulic free-piston engine running and outputs high-pressure oil driving the load running. The fuel self-ignition utilizes the oxygen and heat provided by the oxidizer directly without controlling the compression ratio and the firing of the engine. So the positional requirement of the piston components is not strict, the phenomenon of losing fire can not happen and the reliability is very high. It cancels the firing and starting devices to have simple structure and higher energy density.

Description

technical field [0001] The invention relates to a piston engine, in particular to a two-component hydraulic free piston engine. Background technique [0002] Due to the global energy crisis and the strengthening of environmental protection awareness, the requirements for the environmental protection and energy saving of the engine are becoming more and more urgent. The hydraulic free piston engine is not only a promising power star for walking machinery, but also a strong driving force to promote the development of modern hydraulic technology. . The choice of fuel and how to break through the limitations of the hydraulic free-piston engine, which requires precise design of the compression stroke and precise control of the compression ratio, have become the focus of current research. [0003] The research and development of hydraulic free-piston engines mainly focused on the structure of the free-piston assembly and the choice of fuel. [0004] From the number of piston com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K9/56
Inventor 杨华勇任好玲谢海波夏必忠
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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